Cell-penetrating poly(disulfide)s: the dependence of activity, depolymerization kinetics and intracellular localization on their length.

We report that the depolymerization kinetics of cell-penetrating poly(disulfide)s depend exclusively on their length and propose a kinetic uptake model to explain why their intracellular destination changes with the increasing length from the endosomes over the cytosol to the nucleoli.